A symmetrical delta-connected 415V three-phase supply is feed to an asymmetrical d connected load as shown in Figure Q2(b). Assume that it is a RYB sequence. impedances of the load are ZRY 50+j50 2, ZYu = 150+ j0 2 and ZuR = 50- j50 . (i) Determine and draw the phasor diagram of phase currents in the load. (ii) Determine and draw the phasor diagram of line currents in the system.

Introductory Circuit Analysis (13th Edition)
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IR
R
R
IRY
ZBR
VBR,
VRY
ZRY
IBR
IY
B
Y
Y
VYB
IB
IYB
ZYB
Figure Q2(b)
(b) A symmetrical delta-connected 415V three-phase supply is feed to an asymmetrical delta-
connected load as shown in Figure Q2(b). Assume that it is a RYB sequence. The
impedances of the load are ZRy = 50 + j50 2, ZYB = 150 + jo 2 and Zur = 50 – j50 2.
(i)
Determine and draw the phasor diagram of phase currents in the load.
(ii) Determine and draw the phasor diagram of line currents in the system.
Transcribed Image Text:IR R R IRY ZBR VBR, VRY ZRY IBR IY B Y Y VYB IB IYB ZYB Figure Q2(b) (b) A symmetrical delta-connected 415V three-phase supply is feed to an asymmetrical delta- connected load as shown in Figure Q2(b). Assume that it is a RYB sequence. The impedances of the load are ZRy = 50 + j50 2, ZYB = 150 + jo 2 and Zur = 50 – j50 2. (i) Determine and draw the phasor diagram of phase currents in the load. (ii) Determine and draw the phasor diagram of line currents in the system.
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